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Finding the Fourth Proportional to 58,645.01, 80,803.36 and 39,749.33

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Solution

The fourth proportional to 58,645.01, 80,803.36 and 39,749.33 is: 54,768.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,645.01 : 80,803.36 = 39,749.33 : x
  2. Step 2: Convert to fraction form
    58,645.01/80,803.36 = 39,749.33/x
  3. Step 3: Cross multiply
    58,645.01x = 80,803.36 × 39,749.33
  4. Step 4: Simplify right side
    58,645.01x = 3,211,879,421.75
  5. Step 5: Solve for x
    x = 3,211,879,421.75/58,645.01
  6. Step 6: Final answer
    x = 54,768.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.